TY  - BOOK
AU  - Bridges, E.M.
TI  - World soils
U1  - 631.4 
PY  - 1978///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Soil Science
KW  - Agriculture
KW  - Specific tecniques,apparatus,equipment,materials
N1  - Reprinted 1986
ER  -